WO2000022207A3 - Process and apparatus for the production of nanofibers - Google Patents

Process and apparatus for the production of nanofibers Download PDF

Info

Publication number
WO2000022207A3
WO2000022207A3 PCT/US1999/022798 US9922798W WO0022207A3 WO 2000022207 A3 WO2000022207 A3 WO 2000022207A3 US 9922798 W US9922798 W US 9922798W WO 0022207 A3 WO0022207 A3 WO 0022207A3
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
forming material
column
annular
gas
Prior art date
Application number
PCT/US1999/022798
Other languages
French (fr)
Other versions
WO2000022207A9 (en
WO2000022207A2 (en
Inventor
Darrell H Reneker
Iksoo Chun
Dale Ertley
Original Assignee
Univ Akron
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Akron filed Critical Univ Akron
Priority to AU27056/00A priority Critical patent/AU2705600A/en
Publication of WO2000022207A2 publication Critical patent/WO2000022207A2/en
Publication of WO2000022207A3 publication Critical patent/WO2000022207A3/en
Publication of WO2000022207A9 publication Critical patent/WO2000022207A9/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/022—Processes or materials for the preparation of spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin

Abstract

A process for forming nanofibers comprising the steps of feeding a fiber-forming material into an annular column, the column having an exit orifice, directing the fiber-forming material into an gas jet space, thereby forming an annular film of fiber-forming material, the annular film having an inner circumference, simultaneously forcing gas through a gas column, which is concentrically positioned within the annular column, and into the gas jet space, thereby causing the gas to contact the inner circumference of the annular film, and ejects the fiber-forming material from the exit orifice of the annular column in the form of a plurality of strands of fiber-forming material that solidify and form nanofibers having a diameter up to about 3,000 nanometers.
PCT/US1999/022798 1998-10-01 1999-10-01 Process and apparatus for the production of nanofibers WO2000022207A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27056/00A AU2705600A (en) 1998-10-01 1999-10-01 Process and apparatus for the production of nanofibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10270598P 1998-10-01 1998-10-01
US60/102,705 1998-10-01

Publications (3)

Publication Number Publication Date
WO2000022207A2 WO2000022207A2 (en) 2000-04-20
WO2000022207A3 true WO2000022207A3 (en) 2000-08-24
WO2000022207A9 WO2000022207A9 (en) 2001-03-08

Family

ID=22291264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/022798 WO2000022207A2 (en) 1998-10-01 1999-10-01 Process and apparatus for the production of nanofibers

Country Status (3)

Country Link
US (1) US6382526B1 (en)
AU (1) AU2705600A (en)
WO (1) WO2000022207A2 (en)

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